The negotiations have fallen into a deadlock.

His dream is to pilot a flying boat.

He ended up in a vegetative state after the accident.

This program is designed to avoid a race condition.

There is nothing in his room.

Please stop making unreasonable demands.

He is spending money unreasonably.

I apologize for not contacting you for a long time.

The problem of space debris could potentially have a significant impact on future space development.

The study of cosmic rays may hold the key to unraveling the mysteries of the universe.